/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.calcite.util.format.postgresql;

/**
 * Calendar types that can be used in PostgreSQL datetime formats.
 */
public enum DateCalendarEnum {
  GREGORIAN,
  JULIAN,
  ISO_8601,
  NONE;

  /**
   * Tests if the provided calendar is compatible with this calendar.
   *
   * @param otherCalendar calendar to test with this
   * @return whether the provided calendar is compatible with this
   */
  public boolean isCalendarCompatible(DateCalendarEnum otherCalendar) {
    if (this == NONE || otherCalendar == NONE) {
      return true;
    }

    return this == otherCalendar;
  }
}
